Quote Originally Posted by matty316
.... D-Link DI-604 router, and a Lite-On Communications LNE100TX (rev 20) by Kingston network card....
I certainly would expect a Lite-On and a Dlink router to work together. I've used a Lite-on with a lowly Dlink DI-514 (the worst router they ever made, absolutely avoid it) and it worked fine. I've also used Knoppix with DHCP on two other Dlink routers (Including the 604) with no problems (but not with the Lite-on card in those cases).

Forgive this if it is a dumb question, but you do have DHCP enabled in the router, don't you? (Router web interface, home tab, DHCP button on the left side to get to the correct page.) And it has a large enough range of addresses to give out that it's not out of them, right?

You might want to go to a shell and do a sudo mii-tool -r to reset the card, and then a netcardconfig and see what happens. Post back if any errors show up during the netcardconfig (or for that matter, during the reset).

On rare occasions people have reported problems with routers only to report back later that the problem went away after reseting the router. It would be worth saving your current configuration and resetting the router to see if that helps, although I don't think it is very likely. At least the Dlink lets you restore everything from the saved configuration quickly.

BY the way, what you posted about ifconfig is for the logical "loopback" address. There should be more information available for the actual interface. Hopefully eth0.